Disclosure context

About payoutsking

PayoutsKing is a recently emerged ransomware group first observed in July 2025, operating with apparent financial motivations and demonstrating broad geographic and sectoral targeting capabilities. With limited public documentation available from major threat intelligence sources, the group's origin and affiliations remain unclear, though their targeting pattern suggests a professional ransomware operation rather than opportunistic attacks. Based on available victim data, PayoutsKing has compromised approximately 60 organizations across multiple sectors, with primary focus on the United States, Germany, United Kingdom, France, and Spain, targeting manufacturing, healthcare, technology, and construction industries alongside various other sectors. The group's attack methodology, encryption techniques, and whether they employ double or triple extortion tactics have not been publicly detailed by established security researchers or government agencies. Given the group's recent emergence in July 2025, there are no widely reported major campaigns or high-profile incidents documented by reputable sources such as CISA, FBI, or Mandiant at this time. PayoutsKing appears to remain active as of current reporting, though comprehensive threat intelligence profiles from established security firms have not yet been published due to the group's recent emergence. The group has been linked to 100 public disclosures across our corpus. First observed on a leak site on July 7, 2025; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

April 30, 2026Grant Production Testing Services listed by payoutskingon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, Grant Production Testing Services is reported in CA, a country with 278 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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Grant Production Testing Services

Claimed by payoutsking · listed 21 days ago

21d

Age

since listed · data leaked

Status timeline

Listed
Apr 30, 2026
Data leaked

At a glance

Group: payoutsking
Status: Data leaked
Country: CA
Sector: Business Services
Listed on leak site: Apr 30, 2026

About the victim

AI dossier — public-source company profile

Grant Production Testing Services Ltd. is a Canadian oilfield services company founded in 2001, specializing in frac flowback, inline testing, critical sour well testing, and flow measurement for the upstream oil and gas sector. The company operates out of multiple regional bases across Western Canada, including Calgary, Red Deer, and Grande Prairie, Alberta. With 25 years in the industry, Grant PTS maintains and operates hundreds of well testing assets and serves clients across the Canadian upstream energy sector.

Industry: Oilfield Well Testing & Production Services
Address: Suite 1210 Bow Valley Square IV, 250 - 6th Avenue SW, Calgary, Alberta T2P 3H7, Canada
Founded: 2001

Attack summary

Severity: high — Data has been confirmed published by the threat actor against a company in the energy/oilfield services sector. Published data from an energy sector company can include sensitive operational, employee, and client information. The 'data_published' status elevates this above medium even without a stated data volume.

The ransomware group 'payoutsking' claims to have published data belonging to Grant Production Testing Services, with the disclosure status recorded as data_published. No specific data volume, ransom demand, or details on encryption versus exfiltration have been stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Employee records
Client/operator information
Operational data

Original description

AI-summarised, not from the leak post

Grant Production Testing Services is an oilfield services company specializing in well testing, flow measurement, and production testing solutions for the oil and gas industry. The company provides temporary and permanent testing equipment, data acquisition, and technical expertise to support operators during exploration and production activities. It operates primarily in Canada, serving clients across the upstream energy sector.

The leak post

captured from the group's site

PayoutsKing PayoutsKing Blog News About Partnership Welcome PK MAIN TOX: 535F403A2EA2DC71A392E18D7DB77FEF70845C0B7E5B9114CD30D301870304379C3547E324E2 Company Create Website Country Revenue Employees Actions Data Views Status H****l 2026-04-21 t****.com USA $786M ** Exfiltrated 860GB 0 Declared 1d 02:08 F****p 2026-04-14 fl****.com USA $2.7B ** Exfiltrated &amp; Encrypted 1.1TB 0 Declared 1d 02:08 H****o 2026-04-01 has****.com USA $TBD ** Exfiltrated &amp; Encrypted 4.8TB 0 Declared 1d 02:08 A****y 2026-03-31 ape****.com USA $309M ** Exfiltrated &amp; Encrypted 3TB 0 Declared 2d 00:04 NTN Bearing Corporation of America 2026-04-24 ntnamericas.com USA $1.5B 4700 Exfiltrated 596GB 420 Proof 6d 02:09 About company: NTN Bearing is a producer of ball and roller bearings, with plants around the globe and a strong, domestic manufacturing network. Data description: Confidential, Employees&#39; PII (Personally Identifiable Information), Correspondence, Financial, Engineering, Contracts, Agreements, NDA, FULL INFO SunSource 2026-04-20 sun-source.com USA $2B 3500 Exfiltrated 700GB 3401 Disclosed About company: SunSource is a distribution company, providing products, services, and information in…

Sources

Victim sitegrantpts.com
Leak posthttp://payoutsgn7cy6uliwevdqspncjpfxpmzgirwl2au65la7rfs5x3qnbqd.onion/rgzHsv-AfSBkC-Vzayoa-1bVwMo-67RhLD

Source

Indexed 21 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.